?bjective:To study the dynamic changes of the mean arterial pressure,the pulse pressure,and the blood flow of the anterograde/retrograde posterior tibial vascular flap (A/RPTVF) and the carried free flap (CFF).

• 目的：研究胫后血管顺、逆行皮瓣分别携带游离皮瓣移植的血流动力学及血流量动态变化，探讨此术式的血供规律。